US 12,255,030 B2
Keyswitch assembly
BingWei Zhang, Jiangsu Province (CN); XiaoQiang Liang, Jiangsu Province (CN); Jia-Xun Wu, Taipei (TW); and Lei Shi, Jiangsu Province (CN)
Assigned to LITE-ON Technology (Chang Zhou) Co., LTD., Jiangsu Province (CN); and LITE-ON Technology Corporation, Taipei (TW)
Filed by LITE-ON Technology (Chang Zhou) Co., LTD., Jiangsu Province (CN); and LITE-ON Technology Corporation, Taipei (TW)
Filed on Sep. 9, 2020, as Appl. No. 17/015,604.
Application 17/015,604 is a continuation in part of application No. 16/368,349, filed on Mar. 28, 2019, abandoned.
Claims priority of application No. 201820438380.0 (CN), filed on Mar. 29, 2018.
Prior Publication US 2020/0411253 A1, Dec. 31, 2020
Int. Cl. H01H 3/12 (2006.01); H01H 13/14 (2006.01); H01H 13/20 (2006.01)
CPC H01H 3/125 (2013.01) [H01H 13/14 (2013.01); H01H 13/20 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A keyswitch assembly, comprising:
a base plate;
a circuit board disposed on the base plate;
a keycap disposed on the circuit board;
at least one pressing mechanism movably connected to the base plate and the keycap respectively;
at least one elastic member disposed between the keycap and the circuit board, wherein a first distance between a top surface of the keycap and a top surface of the base plate at a first position corresponding to the at least one elastic member is less than a second distance between the top surface of the keycap and the top surface of the base plate at a second position distal to the at least one elastic member; and
a supporting member engaged with a bottom surface of the keycap, wherein the supporting member has a rib protruding from a main body of the supporting member;
a balance supporting frame surrounding the supporting member and being movably connected to the base plate and the keycap respectively; and
wherein the supporting member made of a metal plate covers at least 50% of the bottom surface and has an opening corresponding to an engaging portion protruding from the bottom surface of the keycap to couple with the at least one pressing mechanism.